行业验证制造数据 · 2026

Gas Lift Cylinder

基于 CNFX 目录中多个工厂资料的聚合洞察，Gas Lift Cylinder 在 家具制造 行业中通常会围绕 标准工业配置 到 重载生产要求 进行能力评估。

技术定义与核心装配

一个典型的 Gas Lift Cylinder 通常集成 外筒管 与 活塞杆。CNFX 上列出的制造商通常强调 Steel 结构，以支持稳定的生产应用。

A pneumatic device that controls the height adjustment of an office chair seat.

查看完整规格 查看制造来源

技术定义

A gas lift cylinder is a key component in ergonomic office chairs that enables smooth, controlled vertical adjustment of the seat height. It uses compressed nitrogen gas and hydraulic oil to provide resistance-free height adjustment while supporting the user's weight. This component is essential for creating personalized seating positions that promote proper posture and comfort during extended work periods.

工作原理

The gas lift cylinder operates on a pneumatic-hydraulic principle. When the release lever is activated, it opens a valve that allows compressed nitrogen gas to expand, pushing a piston upward and raising the chair. When the lever is released, the valve closes, locking the cylinder at the desired height. The hydraulic oil provides damping control for smooth movement and prevents sudden drops.

主要材料

Steel Aluminum alloy Nitrile rubber seals Hydraulic oil Compressed nitrogen gas

组件 / BOM

外筒管
容纳内部组件并提供结构支撑
材料： 钢材
活塞杆
通过伸缩调节座椅高度，传递使用者重量
材料： 镀铬钢
活塞
分离气体与油腔，产生压力差以实现运动
材料： 铝合金
密封件与O型圈
防止气体和油液泄漏，保持压力完整性
材料： 丁腈橡胶
释放阀
控制气体流动，启动时实现高度调节
材料： 黄铜
端部接头
用于连接气缸与椅座底座及座椅机构
材料： 钢材

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Particulate contamination exceeding ISO 4406 Class 18/16/13 in pneumatic supply → Seal abrasion causing pneumatic leakage and loss of height adjustment → Install 5-micron absolute filtration with differential pressure monitoring at supply inlet
Cyclic loading at 0.5 Hz frequency exceeding 500,000 cycles → Fatigue crack initiation at piston rod thread root (stress concentration factor Kt=3.2) → Implement shot peening surface treatment to induce compressive residual stresses of -400 MPa at thread roots

工程推理

运行范围
范围
4-8 bar (58-116 psi)
失效边界
10 bar (145 psi) internal pressure causing permanent plastic deformation of cylinder wall
Yield strength exceedance of aluminum alloy 6061-T6 cylinder material (276 MPa yield strength) leading to permanent deformation and seal failure
制造语境
Gas Lift Cylinder 在 家具制造 中会按材料、工艺窗口和检验要求共同评估。

行业别名与关键词

该产品在 CNFX 数据库中的搜索词、别名和技术称呼。

office chair gas lift cylinder replacement pneumatic height adjustment cylinder furniture steel aluminum gas lift cylinder B2B nitrogen gas lift cylinder for ergonomic chairs furniture manufacturing gas cylinder specifications

应用产品 / 所属系统

该产品或部件会出现在以下工业系统、设备或上级产品中。

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工业生态与供应链结构

互补系统
下游应用
专用工具

应用匹配与尺寸矩阵

运行限制
pressure:Max 250 psi (17.2 bar)
other spec:Flow rate: 0.5-2.0 L/min, No slurry concentration (clean dry air only)
temperature:-10°C to 60°C
兼容性
Clean dry airNitrogen (N2)Filtered compressed air
不适用：Corrosive gases or liquids
选型所需数据
  • User weight capacity (kg/lbs)
  • Desired seat height range (mm/inches)
  • Required lifting force (N/lbf)

可靠性与工程风险分析

失效模式与根因
Seal degradation
原因：Chemical incompatibility with well fluids leading to swelling, hardening, or cracking of elastomeric seals, compounded by high-pressure cycling and temperature extremes.
Cylinder bore scoring
原因：Contaminant ingress (sand, debris) in the gas stream causing abrasive wear on the cylinder wall, often due to inadequate filtration or improper gas quality control.
维护信号
  • Audible hissing or gas leakage sounds from the cylinder body or connections during operation
  • Visible external fluid weeping or gas bubbles at seal interfaces, especially around rod glands or end caps
工程建议
  • Implement strict gas quality monitoring and filtration (e.g., 5-micron filters) upstream to prevent particulate contamination and moisture ingress
  • Establish a predictive maintenance program using vibration analysis and ultrasonic leak detection to identify early-stage seal failures and bore wear before catastrophic breakdown

合规与制造标准

参考标准
ISO 11901-1:2014 - Gas springs - Part 1: Requirements and test methodsANSI/BHMA A156.16 - American National Standard for Gas Spring and Gas Lift CylinderDIN EN 1570-1:2014 - Safety requirements for lifting tables - Part 1: Lifting tables serving up to two fixed landings
制造精度
  • Bore diameter: +/-0.02mm
  • Rod straightness: 0.1mm per 100mm length
质量检验
  • Pressure cycle test (e.g., 50,000 cycles at rated load)
  • Leak test (helium mass spectrometry or pressure decay method)

生产该产品的制造商

具备该产品生产能力的中国制造商与相关工厂资料。

添加你的工厂

制造商列表用于前期研究和供应商能力理解，不代表认证、排名或交易担保。

采购评估维度

不是客户评论，也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档
4/5
制造能力
4/5
可检验性
5/5
供应商透明度
3/5

这些分值是采购评估维度示例，不代表真实客户评分、具体国家买家反馈或实时询盘。

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常见问题

What materials are used in gas lift cylinders for durability?

Our gas lift cylinders feature steel and aluminum alloy construction with nitrile rubber seals, hydraulic oil, and compressed nitrogen gas for long-lasting performance in office furniture.

How does the gas lift cylinder mechanism work in office chairs?

The cylinder uses compressed nitrogen gas and hydraulic oil to create smooth pneumatic pressure, allowing users to adjust seat height via the release valve while maintaining position stability.

What are the main components in a gas lift cylinder BOM?

Key components include end fittings, outer cylinder tube, piston, piston rod, release valve, and seals/O-rings, all precision-engineered for reliable furniture manufacturing integration.

我可以直接联系工厂吗？

CNFX 是开放目录，不是交易平台或采购代理。工厂资料和表单用于帮助你准备直接沟通。
CNFX Industrial Index v2.6.05 · 家具制造

数据基础

CNFX 制造商资料、技术分类、公开产品信息和持续合理性检查。

初步技术归类
本页用于结构化准备研究、RFQ 和供应商评估，不替代买方自己的供应商资质审查、标准核验和技术批准。

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